BaseAdminPlugin - NullPointException - admin action

Hi,

in order to integrate blojsom 3.0 into an existing system I 

implemented another version of BaseAdminPlugin. After
creating a new  
blog I always get this error message when I'm trying to make
a new  
blog entry or any other admin action:

java.lang.NullPointerException
	org.blojsom.authorization.database.DatabaseAuthorizationPro
vider.checkPermission(DatabaseAuthorizationProvider.java:169
)
	org.blojsom.plugin.admin.BaseAdminPlugin.checkPermission(Ba
seAdminPlugin.java:253)
	org.blojsom.plugin.admin.EditBlogEntriesPlugin.process(Edit
BlogEntriesPlugin.java:244)
	org.blojsom.servlet.BlojsomServlet.service(BlojsomServlet.j
ava:253)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802
)
	org.blojsom.filter.PermalinkFilter.doFilter(PermalinkFilter
.java:207)
	org.blojsom.filter.SkipEntriesFilter.doFilter(SkipEntriesFi
lter.java:103)
	org.blojsom.filter.PageFilter.doFilter(PageFilter.java:167)

	org.blojsom.filter.FeedFilter.doFilter(FeedFilter.java:198)

	edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFil
ter.java:156)

My plugin is working for blog 21 but not for 112. I don't
know where I  
should go on searching for this bug.

output of the console when trying to make a new blog entry
for blog 21:

Jul 26 10:24:49 DEBUG [http-8080-Processor23]
servlet.BlojsomServlet -  
Adding last-modified header for current date
Jul 26 10:24:51 DEBUG [http-8080-Processor23]  
velocity.VelocityDispatcher - Retrieved template for page: 

org/blojsom/plugin/admin/templates/admin.vm
Jul 26 10:24:51 DEBUG [http-8080-Processor23]  
velocity.VelocityDispatcher - Dispatched to flavor page
template:  
org/blojsom/plugin/admin/templates/admin.vm
Jul 26 10:24:54 DEBUG [Thread-1] moblog.MoblogPlugin -
Moblog plugin  
off to take a nap
Jul 26 10:25:23 DEBUG [http-8080-Processor24]
core.StandardWrapper -    
Returning non-STM instance
Jul 26 10:25:23 DEBUG [http-8080-Processor24]
filter.FeedFilter -  
Handling feed filter request: /21/
Jul 26 10:25:23 DEBUG [http-8080-Processor24]
filter.PageFilter -  
Handling page filter request: /21/
Jul 26 10:25:23 DEBUG [http-8080-Processor24]
filter.SkipEntriesFilter  
- Handling skip entries request: /21/
Jul 26 10:25:23 DEBUG [http-8080-Processor24]
filter.PermalinkFilter -  
Handling permalink request: /21
Jul 26 10:25:25 DEBUG [http-8080-Processor24]
database.DatabaseFetcher  
- blojsom path info: /
Jul 26 10:25:25 DEBUG [http-8080-Processor24]
database.DatabaseFetcher  
- User requested category: /
Jul 26 10:25:25 DEBUG [http-8080-Processor24]
servlet.BlojsomServlet -  
blojsom plugin execution:
org.blojsom.plugin.admin.EditBlogEntriesPlugin
Jul 26 10:25:25 DEBUG [http-8080-Processor24]  
admin.EditBlogEntriesPlugin - User requested new blog entry
action
Jul 26 10:25:25 DEBUG [http-8080-Processor24]  
common.RSSEnclosurePlugin - Handling process blog entry
event
Jul 26 10:25:25 DEBUG [http-8080-Processor24]  
language.LanguageSelectionPlugin - Handling process blog
entry event
Jul 26 10:25:28 DEBUG [http-8080-Processor24]
servlet.BlojsomServlet -  
Adding last-modified header for current date
Jul 26 10:25:28 DEBUG [http-8080-Processor24]  
velocity.VelocityDispatcher - Retrieved template for page: 

org/blojsom/plugin/admin/templates/admin-add-blog-entry.vm
Jul 26 10:25:28 DEBUG [http-8080-Processor24]  
velocity.VelocityDispatcher - Dispatched to flavor page
template:  
org/blojsom/plugin/admin/templates/admin-add-blog-entry.vm

output of the console when trying to make a new blog entry
for blog 112:

Jul 26 10:27:57 DEBUG [http-8080-Processor22]
servlet.BlojsomServlet -  
Adding last-modified header for current date
Jul 26 10:27:57 DEBUG [http-8080-Processor22]  
velocity.VelocityDispatcher - Retrieved template for page: 

org/blojsom/plugin/admin/templates/admin.vm
Jul 26 10:27:57 DEBUG [http-8080-Processor22]  
velocity.VelocityDispatcher - Dispatched to flavor page
template:  
org/blojsom/plugin/admin/templates/admin.vm
Jul 26 10:28:00 DEBUG [http-8080-Processor22]
core.StandardWrapper -    
Returning non-STM instance
Jul 26 10:28:00 DEBUG [http-8080-Processor22]
filter.FeedFilter -  
Handling feed filter request: /112/
Jul 26 10:28:00 DEBUG [http-8080-Processor22]
filter.PageFilter -  
Handling page filter request: /112/
Jul 26 10:28:00 DEBUG [http-8080-Processor22]
filter.SkipEntriesFilter  
- Handling skip entries request: /112/
Jul 26 10:28:00 DEBUG [http-8080-Processor22]
filter.PermalinkFilter -  
Handling permalink request: /112
Jul 26 10:28:01 DEBUG [http-8080-Processor22]
database.DatabaseFetcher  
- blojsom path info: /
Jul 26 10:28:01 DEBUG [http-8080-Processor22]
database.DatabaseFetcher  
- User requested category: /
Jul 26 10:28:01 DEBUG [http-8080-Processor22]
servlet.BlojsomServlet -  
blojsom plugin execution:
org.blojsom.plugin.admin.EditBlogEntriesPlugin

It would be very nice if someone can give me a hint how I
can solve  
this problem. Thanks,

Ingo


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sers

Thanx for your response, fixed bug. I had to re-write
BaseAdmin because 
I have to query users from another database  for
authentication. Instead 
of httpServletRequest.getRemoteUser() I tried the userid
from the other 
database which will be inserted in blojsom too. It's working
fine.

Ingo
> Strange....
> But i looked at Line 169 of
DatabaseAuthorizationProvider.java. 
>
> This is it :  DatabaseUser user = (DatabaseUser) 
> userCriteria.uniqueResult(); (But my code has also been
changed around 
> so it may not be the same line...)
>
> But what i suspect is that maybe the User that is being
looked for, is 
> not present in the Database. Have you by any chance
changed to LDAP 
> for authentication?
>
> Some more details would be useful.. as in i can't
understand why you'd 
> want to re-write good old BaseAdmin?
>
> Can you elaborate the problem?
>
> ~Shalini
>
> Thank you for your email. Your credit card has been
charged $5.99 for 
> the first 10 words and $1.99 for each additional word
in your message.
>
>
> Ingo Baumann wrote:
>> Hi,
>>
>> in order to integrate blojsom 3.0 into an existing
system I  
>> implemented another version of BaseAdminPlugin.
After creating a new  
>> blog I always get this error message when I'm
trying to make a new  
>> blog entry or any other admin action:
>>
>> java.lang.NullPointerException
>>
	org.blojsom.authorization.database.DatabaseAuthorizationPro
vider.checkPermission(DatabaseAuthorizationProvider.java:169
)
>>
	org.blojsom.plugin.admin.BaseAdminPlugin.checkPermission(Ba
seAdminPlugin.java:253)
>>
	org.blojsom.plugin.admin.EditBlogEntriesPlugin.process(Edit
BlogEntriesPlugin.java:244)
>>
	org.blojsom.servlet.BlojsomServlet.service(BlojsomServlet.j
ava:253)
>>
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802
)
>>
	org.blojsom.filter.PermalinkFilter.doFilter(PermalinkFilter
.java:207)
>>
	org.blojsom.filter.SkipEntriesFilter.doFilter(SkipEntriesFi
lter.java:103)
>>
	org.blojsom.filter.PageFilter.doFilter(PageFilter.java:167)

>>
	org.blojsom.filter.FeedFilter.doFilter(FeedFilter.java:198)

>>
	edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFil
ter.java:156)
>>
>> My plugin is working for blog 21 but not for 112. I
don't know where I  
>> should go on searching for this bug.
>>
>> output of the console when trying to make a new
blog entry for blog 21:
>>
>> Jul 26 10:24:49 DEBUG [http-8080-Processor23]
servlet.BlojsomServlet -  
>> Adding last-modified header for current date
>> Jul 26 10:24:51 DEBUG [http-8080-Processor23]  
>> velocity.VelocityDispatcher - Retrieved template
for page:  
>> org/blojsom/plugin/admin/templates/admin.vm
>> Jul 26 10:24:51 DEBUG [http-8080-Processor23]  
>> velocity.VelocityDispatcher - Dispatched to flavor
page template:  
>> org/blojsom/plugin/admin/templates/admin.vm
>> Jul 26 10:24:54 DEBUG [Thread-1]
moblog.MoblogPlugin - Moblog plugin  
>> off to take a nap
>> Jul 26 10:25:23 DEBUG [http-8080-Processor24]
core.StandardWrapper -    
>> Returning non-STM instance
>> Jul 26 10:25:23 DEBUG [http-8080-Processor24]
filter.FeedFilter -  
>> Handling feed filter request: /21/
>> Jul 26 10:25:23 DEBUG [http-8080-Processor24]
filter.PageFilter -  
>> Handling page filter request: /21/
>> Jul 26 10:25:23 DEBUG [http-8080-Processor24]
filter.SkipEntriesFilter  
>> - Handling skip entries request: /21/
>> Jul 26 10:25:23 DEBUG [http-8080-Processor24]
filter.PermalinkFilter -  
>> Handling permalink request: /21
>> Jul 26 10:25:25 DEBUG [http-8080-Processor24]
database.DatabaseFetcher  
>> - blojsom path info: /
>> Jul 26 10:25:25 DEBUG [http-8080-Processor24]
database.DatabaseFetcher  
>> - User requested category: /
>> Jul 26 10:25:25 DEBUG [http-8080-Processor24]
servlet.BlojsomServlet -  
>> blojsom plugin execution:
org.blojsom.plugin.admin.EditBlogEntriesPlugin
>> Jul 26 10:25:25 DEBUG [http-8080-Processor24]  
>> admin.EditBlogEntriesPlugin - User requested new
blog entry action
>> Jul 26 10:25:25 DEBUG [http-8080-Processor24]  
>> common.RSSEnclosurePlugin - Handling process blog
entry event
>> Jul 26 10:25:25 DEBUG [http-8080-Processor24]  
>> language.LanguageSelectionPlugin - Handling process
blog entry event
>> Jul 26 10:25:28 DEBUG [http-8080-Processor24]
servlet.BlojsomServlet -  
>> Adding last-modified header for current date
>> Jul 26 10:25:28 DEBUG [http-8080-Processor24]  
>> velocity.VelocityDispatcher - Retrieved template
for page:  
>>
org/blojsom/plugin/admin/templates/admin-add-blog-entry.vm
>> Jul 26 10:25:28 DEBUG [http-8080-Processor24]  
>> velocity.VelocityDispatcher - Dispatched to flavor
page template:  
>>
org/blojsom/plugin/admin/templates/admin-add-blog-entry.vm
>>
>> output of the console when trying to make a new
blog entry for blog 112:
>>
>> Jul 26 10:27:57 DEBUG [http-8080-Processor22]
servlet.BlojsomServlet -  
>> Adding last-modified header for current date
>> Jul 26 10:27:57 DEBUG [http-8080-Processor22]  
>> velocity.VelocityDispatcher - Retrieved template
for page:  
>> org/blojsom/plugin/admin/templates/admin.vm
>> Jul 26 10:27:57 DEBUG [http-8080-Processor22]  
>> velocity.VelocityDispatcher - Dispatched to flavor
page template:  
>> org/blojsom/plugin/admin/templates/admin.vm
>> Jul 26 10:28:00 DEBUG [http-8080-Processor22]
core.StandardWrapper -    
>> Returning non-STM instance
>> Jul 26 10:28:00 DEBUG [http-8080-Processor22]
filter.FeedFilter -  
>> Handling feed filter request: /112/
>> Jul 26 10:28:00 DEBUG [http-8080-Processor22]
filter.PageFilter -  
>> Handling page filter request: /112/
>> Jul 26 10:28:00 DEBUG [http-8080-Processor22]
filter.SkipEntriesFilter  
>> - Handling skip entries request: /112/
>> Jul 26 10:28:00 DEBUG [http-8080-Processor22]
filter.PermalinkFilter -  
>> Handling permalink request: /112
>> Jul 26 10:28:01 DEBUG [http-8080-Processor22]
database.DatabaseFetcher  
>> - blojsom path info: /
>> Jul 26 10:28:01 DEBUG [http-8080-Processor22]
database.DatabaseFetcher  
>> - User requested category: /
>> Jul 26 10:28:01 DEBUG [http-8080-Processor22]
servlet.BlojsomServlet -  
>> blojsom plugin execution:
org.blojsom.plugin.admin.EditBlogEntriesPlugin
>>
>> It would be very nice if someone can give me a hint
how I can solve  
>> this problem. Thanks,
>>
>> Ingo
>>
>>
>>
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sers
>>
>>   
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Still grepping through log files to find problems?  Stop.
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_______________________________________________
Blojsom-users mailing list
Blojsom-userslists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/blojsom-u
sers